Hand turning-tool.



No. 757,131. PATBNTBD APR. 12, 1904.V

E. LEONARD.

HAND TURNING TOOL.

APPLIGATION FILED FEB. 2. 1903. N0 MODEL.

i I l l c mm A l @Afrwijzys Patented April 12,. 1904.

PATENT OFFICE.

ELROY LEONARD, OF LENOX, WEST VIRGINIA.

HAND TURNING-TOOL.

SPECIFICATION forming part of Letters Patent No. 757,131,

dated April 12, 1904.

Application filed February 2, 1903. Serial No. 141,526. (No model.)

To a/ZZ whom, t may concern:

Be it known that I, ELRoY LEONARD, a citizen of the United States, residing at Lenox, in the county of Preston and. State of West Virginia, have invented a new and useful Hand Turning-Tool, of which the following is a specification.

My invention relates to hand'turningtools for turning screw-threads or other configurations on pipes, rods, bolts,and the like by hand; and it consists in improved means for holding the dies employed in cutting such forms.

The objects contemplated in my invention are to produce a separable die-stock which is simple in construction, which is readily separated to permit the insertion or removal of dies, and which is adapted to hold dies of various sizes. In accomplishing these ends I make use of the construction hereinafter fully described and shown in the accompanying drawings, in which* f Figure 1 is a view in perspective of the improved hand turning-tool assembled and holding a die for cutting screw-threads. Fig. 2 is a view in plan of the parts disassembled and showing a die of the preferred form in position to be gripped by the gripping members. Fig. 3 is a view inl section along the line 3 3 of Fig. 2, the view being taken from the right and directed toward the left. Fig. 4 is a perspective view of a preferred form of die.

In all the figures above mentioned corresponding parts are indicated by the same characters of reference throughout. 4

My invention consists, broadly, in two frame members, each of which forms a right angle and is adapted, with its fellow, to be secured together to form a rectangular frame of variable size in which dies of different sizes may be held by means of a jam-nut or other suitable clamping means. Each of the right-angled frame members is provided at certain points with serrations adapted to engage the correspondingly-placed serrations on its fellow, which serve the dou-ble purpose of presenting interlocking portions by which the frame members may be secured Vin perfectly rigid engagement and at the same time prothe serrations 5.

i l viding for adjustment of the said frame to clasp dies of different sizes.

Referring to the drawings by reference characters, 1 represents a handle secured to an arm 2 of one of the frame members.

3 is the other arm, projecting at right angles to the arm 2.

4 represents serrations on the outer surface of the arm 3, and 5 indicates serrationsupon an enlargement 6 at the free end of the arm 2.

7 indicates the handle, attached to an arm 8 of the other frame member, said arm 8 being slotted near its end to permit the passage of the end of the arm 8. Serrations 9 are provided at the outer end of said slot to engagev with serrations on the arm 8 of the frame mem.- ber iirst mentioned. g

lO isthe other arm of the second frame member, which is slotted through nearly its entire length, as shown, to permit the arm 2 to move therein. Serrations 11 are provided on the outer surface of the arm 10 to engage with At the end of the arm 10 is an opening 12, through which a pin may be passed, if desired, to prevent the complete separation of the frame members. Passing through the slot in the arm 10. is a screw 13, which engages with a threaded jam-nut 14,

lchanneled-at 15 15, so as to interlock lwith the inner surfaces of the slotted arm 10 to prevent any rotation. The inner surfaces of the arms 2 and 8 are provided with ribs 16 16, adapted to engage with corresponding grooves 17 17, provided on the sides of the die, which is preferably formed of two parts 18 and 19.

In using my improved hand turning-tool a die of suitable size for the purpose intended is placed between the two right-angled frame members. Said members are first brought into contact with the die, the ribs on the inner surfaces of the arms 2 and 8 engaging with grooves provided on the outer surfaces of the die for that purpose, and the members are then secured in the desired position by means of the jam-nut and screw. When it is desired to remove the die from the die-stock, the Vjam-nut and screw are released from engagement with the die and stock, the interlocking serrations disengaged, and theframe members drawn apart by pulling upon the mit the die to be removed.'

It will be readily seen that dies of dierent sizes may be easily grasped by means of my improved hand turning-tool, that the dies may be easily inserted and removed from, the stock, and that the construction is one of eX- treme simplicity and comprises a very small number of working parts. .Other especial advantagesof my improved hand turning-tool are that it is adapted to hold separable dies with great security and that the 'stock any wear of the die may be compensated for by grinding down the surfaces at which the two halves of the die come in wish to limit myself to the use of separable dies. A

Having now fully described the construction and operation of my improved hand turning-tool, what I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination with a die, of a separable die-stock comprising two frame members each provided with serrations' adapted to engage with serrations on its fellow, said members being adapted, when joined, to present a on one of said frame members to force said die against the other frame member and thereby hold the frame members and the die in association.

2. The combination with a die, of a die-stock comprising two frame members each presenting two arms disposed at right angles to each other and provided with serrated surfaces adapted to engage with corresponding surfaces upon the arms of the other frame member, and a Screw carried by one of said frame members and adapted to force said die against the otherframe member and thereby to hold the frame members and the die in engagement.

3. The combination with a die, of adie-stock comprising two frame members each presenting two arms disposed at right angles to each other, the arms of one frame member being slotted to receive the arms of the other frame member, and the arms of both frame memhandles l and 2 to a sufficient extent to perowing to the way in which the die is held in.'

contact in order to restore the original diam-l threads or other desired form, and I do notx die-receiving opening, and means p rovidedv bers being provided with serrations adapted t0 interlock when the arms are joined, Aand a screw carried by one of said frame members and adapted to force said die against the other frame member to hold the die and the frame members in engagement.

4. The combination with a die, of a die-stock comprising separable frame members which interlock and present adie-receiving opening, and means carried' by one of said frame members to engage saidndie and by forcingthe die against the other `frame member, to hold the die vand the frame members in association.

. 5. The combination with a die, of a die-stock comprising a pair of frame members each having arms disposed at right angles which interlock, and means carried by one arm of one of said frame members to engage with said die and by forcing the die against the opposite frame member, to hold the die and the frame members in association.

6. The combination with a separable die, of a die-stock presenting a pair of frame members which interlock and present a die-receiving opening and meansprovided on one of said frame members to y engage one member of said die and by forcing the die against the opposite frame member, to hold the die and v the frame members in association.

7. The combination with a die having grooves in opposite sides thereof, of a die-stock comprising two interlocking frame members having ribs adapted for engagement with said grooves, said frame members being adapted when interlocked to present a die-receiving opening, and means mounted on one of said frame members,` to force said die into engagement with the opposite frame member and thereby to hold said die and said frame members in association.

8. The combination with a die, of a die-stock comprising a pair of frame members which interlock and present a diereceiving opening, one of said frame members being slotted for the reception of a screw, a screw provided in the slotted frame member, and a jam-nut mounted on said screw for engagement with the frame member, said screw serving to force the die against the frame member opposite that upon which the screw is carried and thereby -to hold the die and frame members in association. A f

9. The combination with a die, of a die-stock comprising a pair of frame members each presenting arms disposed at right angles to each other, the arms of one frame member being slotted. to receive the arms of the other frame member and the arms of both frame members being .provided with interlocking portions adapted for simultaneous engagement when Isaid frame members are assembled, a screw IOO IIO

IZO

said screw and adapted to engage the sides my own I have hereto affixed my signature in of said slot thereby enabling the screw to be the presence of two Witnesses.

brought into engafrement With the die to force it against the oppbsite frame member and 'to ELROY LEONARD' 5 hold the die and the frame membersin en- Witnesses:

gagement. SAMUEL MILLER,

In testimony that I claim the foregoing as ZELL MILLER. 

